MK3 Nema 17 dust cover

First thing: PLEASE REPORT ME IF IS SOMETHING BAD (for reconstruction, correction or something else)

Easy and simple design dust and screw cover for nema 17 stepper motor with lock...
I use PLA for x/y/z axis, where motor dont have for long time high temperature. But for extruder use PET-G, or something better heat resistant material. Lock and cover don't collide with any motion parts inside in stepper motor. Lock system (rind type, red color on picture) have special 4 slots for demontage. U